3525861 has 8 divisors (see below), whose sum is σ = 4778464. Its totient is φ = 2311920.

The previous prime is 3525859. The next prime is 3525869. The reversal of 3525861 is 1685253.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3525861 - 2¹ = 3525859 is a prime.

It is a Duffinian number.

3525861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3525869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9451 + ... + 9816.

It is an arithmetic number, because the mean of its divisors is an integer number (597308).

Almost surely, 2^3525861 is an apocalyptic number.

It is an amenable number.

3525861 is a deficient number, since it is larger than the sum of its proper divisors (1252603).

3525861 is a wasteful number, since it uses less digits than its factorization.

3525861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19331.

The product of its digits is 7200, while the sum is 30.

The square root of 3525861 is about 1877.7276160295. The cubic root of 3525861 is about 152.2024800400.

The spelling of 3525861 in words is "three million, five hundred twenty-five thousand, eight hundred sixty-one".